// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_RENDERER_DEVICE_SENSORS_DEVICE_MOTION_EVENT_PUMP_H_
#define CONTENT_RENDERER_DEVICE_SENSORS_DEVICE_MOTION_EVENT_PUMP_H_

#include <memory>

#include "base/macros.h"
#include "content/renderer/device_sensors/device_sensor_event_pump.h"
#include "content/renderer/shared_memory_seqlock_reader.h"
#include "device/sensors/public/interfaces/motion.mojom.h"
#include "third_party/WebKit/public/platform/modules/device_orientation/WebDeviceMotionData.h"

namespace blink {
class WebDeviceMotionListener;
}

namespace content {

typedef SharedMemorySeqLockReader<blink::WebDeviceMotionData>
    DeviceMotionSharedMemoryReader;

class CONTENT_EXPORT DeviceMotionEventPump
    : public DeviceSensorMojoClientMixin<
          DeviceSensorEventPump<blink::WebDeviceMotionListener>,
          device::mojom::MotionSensor> {
public:
    explicit DeviceMotionEventPump(RenderThread* thread);
    ~DeviceMotionEventPump() override;

    // PlatformEventObserver.
    void SendFakeDataForTesting(void* fake_data) override;

protected:
    void FireEvent() override;
    bool InitializeReader(base::SharedMemoryHandle handle) override;

    std::unique_ptr<DeviceMotionSharedMemoryReader> reader_;

    DISALLOW_COPY_AND_ASSIGN(DeviceMotionEventPump);
};

} // namespace content

#endif // CONTENT_RENDERER_DEVICE_SENSORS_DEVICE_MOTION_EVENT_PUMP_H_
